EP 1490165 B1 20080326 - EPOXYSILICONE COATED MEMBRANES
Title (en)
EPOXYSILICONE COATED MEMBRANES
Title (de)
MIT EPOXYSILIKON BESCHICHTETE MEMBRANEN
Title (fr)
MEMBRANES RECOUVERTES D'EPOXY-SILICONE
Publication
Application
Priority
US 0210864 W 20020403
Abstract (en)
[origin: WO03084651A1] The invention relates to a method of making a epoxysilicone coated membrane by coating a porous asymmetric membrane layer with a UV-curable controlled release epoxysilicone coating. A mixture of the epoxysilicone resin and an onium photocatalyst are applied to the porous asymmetric membrane layer in a dilute non-polar solution and cured by UV or electron beam radiation to produce a dry epoxysilicone coated membrane. The porous asymmetric membrane layer is comprised of an asymmetric cellulosic membrane or an asymmetric polymer membrane with a low selectivity. The epoxysilicone coating was found to provide the asymmetric membrane layer with improved selectivity which extends to separation temperatures below 70 °C and provides stable flux rates. Membranes produced in this manner are useful for the separation of gases such as carbon dioxide from natural gas.
IPC 8 full level
B01D 67/00 (2006.01); B01D 53/22 (2006.01); B01D 69/12 (2006.01); B01D 71/16 (2006.01); B01D 71/70 (2006.01)
CPC (source: EP)
B01D 53/228 (2013.01); B01D 67/0088 (2013.01); B01D 67/009 (2013.01); B01D 69/125 (2013.01); B01D 71/16 (2013.01); B01D 71/70 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 03084651 A1 20031016; AT E390201 T1 20080415; AU 2002254553 A1 20031020; CA 2480480 A1 20031016; CA 2480480 C 20100223; CN 1289175 C 20061213; CN 1625435 A 20050608; DE 60225847 D1 20080508; EA 005984 B1 20050825; EA 200401300 A1 20050825; EP 1490165 A1 20041229; EP 1490165 B1 20080326; MX PA04009650 A 20050111; NO 20044733 L 20041102; NO 332738 B1 20121227; NZ 535793 A 20060331
DOCDB simple family (application)
US 0210864 W 20020403; AT 02723787 T 20020403; AU 2002254553 A 20020403; CA 2480480 A 20020403; CN 02828851 A 20020403; DE 60225847 T 20020403; EA 200401300 A 20020403; EP 02723787 A 20020403; MX PA04009650 A 20020403; NO 20044733 A 20041102; NZ 53579302 A 20020403